Releasing mechanism.



O. E. BEACH. RBLEASING MECHANISM.

APPLIOATION FILED MAY 29,1911.

1,050,791. Patented Jan. 21, 1913.

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UNITED STATES PATENT OFFICE.

CLARENCE E. BEACH, or BINGHAM'ION, NEW You, nssrenon To enonen o. KNAPP, or NEW YORK, N.- Y.

' RELEASING MECHANISM.

Specification of Letters Patent.

Patented Jan. 21, 1913.

To all w/wm it may concern Be it known that I,CLAREN0E E. Bnaon, a citizen of the United States, residing at Binghamton, in the county of Broome and State of New York, have invented certain new and useful Improvements in Releasing Mechanism, of which the following is a specification.

My invention relates to a releasing mechanism and has for its object to provide a device which will cause a movable member tobe disengaged from a holding device and which will enable such member to again engage such holding. device even though the disengaging means has not been withdrawn.

It has for its further object to provide a releasing mechanism operated by an electromagnet which is capable of operation upon a closure of the circuit instead of upon a break in the circuit, an arrangement for this latterpurpose being shown in U. S. Letters Patent No. 726,882, dated May 5, 1903, to H. W. Doughty and C. E. Beach; and also to provide a modified arrangement of the latch-releasing mechanism which will perform its function when the circuit is broken.

In the accompanying drawings: Figure 1 shows the mechanism in the open-circuit position; Fig. 2 in the position assumed just after the circuit has closed, and the latch has been released; Fig. 3 in the position justafter the latch has been restored and the circuit closed; and Fig. 4 shows a modification.

The mechanism consists of an electromagnet 1, having an armature 2, carried on a bell-crank lever 3 with a retracting spring 4:.

5 is a releasing bar, pivoted at one end to the lower end of the lever 3, and guided,as to its free end, between two fixed pins 8, 9, secured to the frame of the machine. releasing bar 5 has, at the end which passes between pins 8, 9, a thin blade-like portion 17.

- 7 is a hooked latch pivoted to a movable arm 10 and normally pressed by a spring 11 toward the pin 8. A tail 12, attached to the latch 7, by engagement with stops 13, 14, limits the movement of the latch.

15, 15 are stop pins. The arm 10 is shown as pivoted and is assumed to be part of some vmechanism which, after the arm is released, has means This for restoring the arm to its original position, and the double-pointed arrow on such arm 10 is intended to indicate that this arm has such to-and-fro movement.

In Fig. 4, a reversely-arranged bell-crank lever 30, retracting spring 40, and releasing bar 50, are shown in connection with the same form of latch shown in Figs. 1, 2 and 3.

The operation of the mechanism is as follows: Assuming the parts to be in the posit on shown in Fig. 1, upon a closure of the c rcuit, the magnet l is energized, pulls up its armature (see Fig. 1), moves the bellcrank lever, causing the releasing bar 5 to push latch 7 off of pin 8, thereby releasing arm 10. The end 17 of the bar 5 is made thin so that when the arm 10 is lifted, carrying with it the latch 7, this latch ,will pass the pin 8, the spring 11 permitting it to swing on its pivot for this purpose and then swing back into the position shown in Fig. 3, with its book overlying the end 17 of the bar 5. \Vhen the circuit is interrupted, the magnet 1 is deenergized, the

spring 4 pulls the armature away from the magnet and the bar 5 from under the hook of the latch, thus restoring the parts to the posit-ion shown in Fig. 1. It will however be not-ed that the arm 10 will be held up by the, latch 7, as shown in Fig. 3, evenif the end 17 of the bar 5 has not been withdrawn.

The operation of the modification shdwn in Fig. 4 is the same, except that the cycle of movements is initiated by a break in the circuit instead of a closure, and W111 be readily understood without further description.

I claim: .7

1. A releasing mechanism, comprising a magnet, a spring-retracted bell-crank lever,

.an armature on one arm of said lever, a.

releasing bar pivoted to the other arm, a

p n on which said bar slides, a spring latch adapted to engage such pin, and a movable member carrying such latch. A

2. A releasing. mechanism, comprising a movable member carrying a spring latch, a stationary pin with' which such latch is adapted to engage, a magnet, and means controlled by the, magnet for disengaging the latch from the pin.

3. A releasing mechanism, comprising a movable member carrying a spring latch, a

stationary pin with which such latch is adapted to engage, a magnet, and a releastending to the edge of the pin and controlled by the magnet for disengaging the latch from the pin.

5. A releasing mechanism, comprising a magnet, a spring-retracted lever, an armature on'one arm of such lever, a releasing bar connected to the other arm of said lever, a pin on which said bar slides, the end of the bar having a path of movement extending to the edge of the pin, a spring latch having a portion extending over said pin and arranged to be disengaged therefrom by movement of the bar, and a movable member carrying said latch.

6. A mechanism comprising a magnet, a movable member carryinga spring latch, a pin with which said latch is adapted to engage, a releasing bar permanently resting upon said pin and adapted to slide over saidv pin to disengage said latch from the pin, the extent of the return movement ,of

the movable member being suflicient to permit the latch to overlie the end of the releasing bar, and an electro-magnet for sliding said bar.

7. A mechanism comprising a movable member carrying a spring latch, a pin with which such latch is adapted to engage, a

bar arranged to pass over said pinto disengage such latch, the extent of the return movement of the movable member being sufiicient to permit the latch to overlie the end of the releasing bar, and means for advancing and retracting the bar.

8. A mechanism .comprising a movable member carrying a latch, a stationary pin is released.

9. A mechanism comprising a movable membercarrying a spring latch, a pin in the path of said spring latch, a releasing bar adapted to rest on the pin and to assume one position to allow the latch to engage the pin to lock the movable member and to move over the pin to push the latch therefrom, and an electro-magnet controlling the moveinents of said bar.

10. A mechanism comprising a movable 'member carrying a spring latch, a bar CLARENCE E. BEACH.

Witnesses:

H. W. DOUGHTY, M. L. THOMAS. 

